Tài liệu HotPDF

THotPDF Font Fallback Methods

Cấu hình các mặt fallback có thứ tự và cung cấp các chẩn đoán vùng bao phủ và metric dọc

Các khai báo

procedure SetFontFallbackChain(Script: THPDFFontScript;
  const FontNames: array of AnsiString);
procedure ClearFontFallbackChain(Script: THPDFFontScript);
procedure ClearAllFontFallbackChains;
function FontFallbackCount(Script: THPDFFontScript): Integer;
function FontFallbackName(Script: THPDFFontScript;
  Index: Integer): AnsiString;
function FontScriptForCodePoint(CodePoint: Cardinal): THPDFFontScript;
function ResolveFontForCodePoint(CodePoint: Cardinal;
  const PrimaryFontName: AnsiString;
  out ResolvedFontName: AnsiString): boolean; overload;
function ResolveFontForCodePoint(CodePoint: Cardinal;
  const PrimaryFontName: AnsiString; const FontStyle: TFontStyles;
  out ResolvedFontName: AnsiString): boolean; overload;
function AnalyzeUnresolvedGlyphs(const Text: WideString;
  const PrimaryFontName: AnsiString): THPDFUnresolvedGlyphInfoArray; overload;
function AnalyzeUnresolvedGlyphs(const Text: WideString;
  const PrimaryFontName: AnsiString; const FontStyle: TFontStyles):
  THPDFUnresolvedGlyphInfoArray; overload;
function GetUnresolvedGlyphs: THPDFUnresolvedGlyphInfoArray;
procedure ClearUnresolvedGlyphs;
function GetVerticalGlyphMetrics(CodePoint: Cardinal;
  out AdvanceY, OriginY: Integer): boolean;
procedure SetVerticalDefaultMetrics(AdvanceY, OriginY: Integer);

Các kiểu

THPDFFontScript = (hfsCommon, hfsLatin, hfsGreek, hfsCyrillic,
  hfsHebrew, hfsArabic, hfsIndic, hfsSoutheastAsian, hfsCJK,
  hfsKana, hfsHangul, hfsEmoji, hfsOther);

THPDFUnresolvedGlyphInfo = record
  CodePoint: Cardinal;
  FontName: AnsiString;
  Script: THPDFFontScript;
  SuggestedFonts: AnsiString;
end;

THPDFUnresolvedGlyphInfoArray = array of THPDFUnresolvedGlyphInfo;

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